Another Apple-to-switch-Macs-to-ARM post. "Apple engineers have grown confident that the chip designs used for its mobile devices will one day be powerful enough to run its desktops and laptops, said three people with knowledge of the work, who asked to remain anonymous because the plans are confidential. Apple began using Intel chips for Macs in 2005." No idea when Apple will make the switch, but they will do it. I'm thinking 5-10 year timeframe.

Didn't amiga try to offload various types of processing onto a variety of units in their desktop hardware?

Yes. Including what can be probably seen as the first compositing window manager.

But it can be argued that this, and overall tight coupling of hardware & software, was also the undoing of Amiga - the 500 generation was great; but later improvements, while maintaining compatibility, proved hard & expensive. 1200 gen was not much better, half a decade later.

Essentially, Amiga had console-like hw and market dynamics (most people never upgraded past 500, hence games always targeted mostly 500), but without matching business model (Amiga being an open platform, Commodore unable to extract money from dev houses the way Nintendo could; something like that also essentially killed Atari and led to video game crash of 1983 ...in which Commodore played a major part, seems they didn't quite realise what they did)